Use multiple external hard drives of the same brand as one?

For example, if I want to use two or more external hard drives from WD Elements or other brands as one, so that the laptop / PC recognizes them as one, does that work with some sort of USB hub or distributor?

I have an idea for a modular hard drive system,

With each answer I would be very helpful.

Is there already, is called RAID

just google it

I can't search for myself right now. But I think you should look for "racks". These must of course be RAID-capable.

You can get information about RAIDs at Wikipedia.

Many Thanks! And would it be possible to put it in a kind of case, so to speak, with each individual hard drive, so that I can connect any number of hard drives with each other?

My goal would be just that each disk can be used independently so to speak, so that I have in any hard drive RAID "inside" so I have to put the hard drive with a RAID controller in its own housing and then combine any number of hard drives, so not like a hard drive tower where I only have a limited number of slots

RAIDs are fixed and relatively inflexible constructs. Under Linux, there's something like a UnionFS, the 'mats together' several plates.

What do you want to achieve?

That I build a housing for a hard drive and then connect as many hard drives as you can a kind of modular system of a memory tower

In the professional environment, the ceph.

Many Thanks!

Only one more question: What would happen if I connect the hard drives via a USB hub so only via a cable to a laptop, he would then simply recognize it as 2 or?

Exactly.

Thank you very much